package com.li.springboard.mapper;

import com.li.springboard.pojo.Department;
import org.springframework.stereotype.Repository;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

@Repository
public class DepartmentDao {

    //模拟数据库数据
    private static Map<Integer, Department> departments=null;
    static {
        departments=new HashMap<Integer, Department>(); //创建一个部门表
        departments.put(101,new Department(101,"教学部"));
        departments.put(102,new Department(102,"餐饮部"));
        departments.put(103,new Department(103,"学生部"));
        departments.put(104,new Department(104,"教研部"));
        departments.put(105,new Department(105,"后勤部"));
    }

    //获取所有部门信息
    public Collection<Department> getDepartments(){
        return departments.values();
    }
    //通过员工id查询部门
    public Department getDepartmentById(Integer id){
        return  departments.get(id);
    }

}
